Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles
ZnO nanoparticles have gained considerable interest lately due to their remarkable optical and electrical properties, which enable them to have the potential to be the next generation of transparent semiconductors. However, interactions with atmospheric water and surface carbonates limited and serio...
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| Format: | Article |
| Language: | English |
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University of Technology, Baghdad
2023-03-01
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| Series: | Journal of Applied Sciences and Nanotechnology |
| Subjects: | |
| Online Access: | https://jasn.uotechnology.edu.iq/article_22936_498f42a7c941c850ab1a4bdfce18c094.pdf |
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| author | Mohammed Ibrahem Emanuele Verrelli Khue Lai Fei Cheng Mary O’Neill |
| author_facet | Mohammed Ibrahem Emanuele Verrelli Khue Lai Fei Cheng Mary O’Neill |
| author_sort | Mohammed Ibrahem |
| collection | DOAJ |
| description | ZnO nanoparticles have gained considerable interest lately due to their remarkable optical and electrical properties, which enable them to have the potential to be the next generation of transparent semiconductors. However, interactions with atmospheric water and surface carbonates limited and seriously threatened device stability and dependability. The UV photoconductivity of the ZnO NP films is heavily influenced by oxygen adsorption and organic species in the ambient air. The stability of the ZnO photodetector prepared, annealed, and tested in a nitrogen atmosphere was improved in terms of current magnitude and sustaining photocurrent cycles. ZnO NPs films processed in the air show considerable change in surface composition compared to nitrogen indicated by surface organic complexes. In an oxidized manufacturing environment, the compounds above were effectively eliminated while partly degraded in nitrogen. We find that the ZnO NPs surface is highly reactive with ambient CO<sub>2</sub>, generating surface carbonates groups that promote electrically active surface states. |
| first_indexed | 2024-04-10T00:45:19Z |
| format | Article |
| id | doaj.art-b04037e69dc94574bb614ecc0b5f2cc6 |
| institution | Directory Open Access Journal |
| issn | 2788-6867 |
| language | English |
| last_indexed | 2024-04-10T00:45:19Z |
| publishDate | 2023-03-01 |
| publisher | University of Technology, Baghdad |
| record_format | Article |
| series | Journal of Applied Sciences and Nanotechnology |
| spelling | doaj.art-b04037e69dc94574bb614ecc0b5f2cc62023-03-13T22:31:29ZengUniversity of Technology, BaghdadJournal of Applied Sciences and Nanotechnology2788-68672023-03-013111512310.53293/jasn.2022.5000.116922936Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide NanoparticlesMohammed Ibrahem0Emanuele Verrelli1Khue Lai2Fei Cheng3Mary O’Neill4Laser Science and Technology Branch, Department of Applied Sciences, University of Technology – IraqDepartment of Physics and Mathematics, University of Hull – United KingdomDepartment of Engineering and Computer Science, University of Hull – United KingdomDepartment of Physics and Mathematics, University of Hull – United KingdomSchool of Science and Technology, Nottingham Trent University – United KingdomZnO nanoparticles have gained considerable interest lately due to their remarkable optical and electrical properties, which enable them to have the potential to be the next generation of transparent semiconductors. However, interactions with atmospheric water and surface carbonates limited and seriously threatened device stability and dependability. The UV photoconductivity of the ZnO NP films is heavily influenced by oxygen adsorption and organic species in the ambient air. The stability of the ZnO photodetector prepared, annealed, and tested in a nitrogen atmosphere was improved in terms of current magnitude and sustaining photocurrent cycles. ZnO NPs films processed in the air show considerable change in surface composition compared to nitrogen indicated by surface organic complexes. In an oxidized manufacturing environment, the compounds above were effectively eliminated while partly degraded in nitrogen. We find that the ZnO NPs surface is highly reactive with ambient CO<sub>2</sub>, generating surface carbonates groups that promote electrically active surface states.https://jasn.uotechnology.edu.iq/article_22936_498f42a7c941c850ab1a4bdfce18c094.pdfzno nanoparticlesuv photodetectordevice stability |
| spellingShingle | Mohammed Ibrahem Emanuele Verrelli Khue Lai Fei Cheng Mary O’Neill Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles Journal of Applied Sciences and Nanotechnology zno nanoparticles uv photodetector device stability |
| title | Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles |
| title_full | Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles |
| title_fullStr | Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles |
| title_full_unstemmed | Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles |
| title_short | Effect of Atmospheric Conditions on Ultraviolet Photoconductivity of Zinc Oxide Nanoparticles |
| title_sort | effect of atmospheric conditions on ultraviolet photoconductivity of zinc oxide nanoparticles |
| topic | zno nanoparticles uv photodetector device stability |
| url | https://jasn.uotechnology.edu.iq/article_22936_498f42a7c941c850ab1a4bdfce18c094.pdf |
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